{"id":"CVE-2025-24990","published":"2025-10-14T17:15:39Z","modified":"2026-06-17T08:59:56Z","title":"Microsoft Windows Untrusted Pointer Dereference Vulnerability","vendor":"Microsoft","product":"Windows","tier":"core","eol":null,"description":{"text":"Microsoft is aware of vulnerabilities in the third party Agere Modem driver that ships natively with supported Windows operating systems.  This is an announcement of the upcoming removal of ltmdm64.sys driver.  The driver has been removed in the October cumulative update.\nFax modem hardware dependent on this specific driver will no longer work on Windows.\nMicrosoft recommends removing any existing dependencies on this hardware.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an untrusted pointer dereference in the third-party Agere Modem driver (ltmdm64.sys) that ships with supported Microsoft Windows operating systems. An attacker with local access and low-privilege authentication, requiring no user interaction, could exploit it to compromise confidentiality, integrity and availability.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:40Z"},"cvss":{"score":7.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.06369,"percentile":0.93637,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-10-14","dueDate":"2025-11-04","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-24990 ; https://nvd.nist.gov/vuln/detail/CVE-2025-24990","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-10-14","exploitedFirstSeen":"2025-10-14","ransomware":false,"evidence":[{"url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2025-Oct","date":"2025-10-14"},{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990","date":"2025-10-14"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-10-14"},{"url":"https://research.checkpoint.com/2025/20th-october-threat-intelligence-report/","date":"2025-10-20"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"}],"evidenceTotal":5,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-822","name":"Untrusted Pointer Dereference"}],"references":[{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24990","tags":["Vendor Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-24990-detection-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows","tags":["Third Party Advisory"]},{"url":"https://www.vicarius.io/vsociety/posts/cve-2025-24990-mitigation-script-elevation-of-privilege-vulnerability-in-agere-modem-driver-affecting-windows","tags":["Mitigation","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24990","tags":["US Government Resource"]}],"techniques":[],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-34257","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-34257","exploited":true,"exploitedSince":"2025-10-14","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2025-10-16","earliestUrl":"https://github.com/moiz-2x/CVE-2025-24990_POC","repos":[{"name":"moiz-2x/CVE-2025-24990_POC","url":"https://github.com/moiz-2x/CVE-2025-24990_POC","stars":58,"created":"2025-10-16"},{"name":"sentinel-aidefense/CVE-2025-24990","url":"https://github.com/sentinel-aidefense/CVE-2025-24990","stars":0,"created":"2026-07-27"}]},"first":{"date":"2025-10-16","source":"PoC-in-GitHub","url":"https://github.com/moiz-2x/CVE-2025-24990_POC"},"provenance":"source"},"exploitRefs":[],"flow":[],"timeline":[{"date":"2025-10-14","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-24990","provenance":"source"},{"date":"2025-10-14","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2025-Oct","provenance":"source"},{"date":"2025-10-14","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-10-14","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-34257","provenance":"source"},{"date":"2025-10-16","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/moiz-2x/CVE-2025-24990_POC","provenance":"source"}],"speed":{"daysToPublicExploit":2,"firstExploitFrom":"PoC-in-GitHub","daysToKev":0},"priority":{"score":67.2,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 381 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":18.73,"detail":"percentile 0.9364"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.46,"detail":"base score 7.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-microsoft-windows-cwe-822"}}